[Bug rtl-optimization/81290] [8 Regression] ICE in update_br_prob_note

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81290

Jan Hubicka <hubicka at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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             Status|NEW                         |ASSIGNED
                 CC|                            |hubicka at gcc dot gnu.org
           Assignee|unassigned at gcc dot gnu.org      |hubicka at gcc dot gnu.org

--- Comment #2 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
this is bug in threadupdate which makes count to be reliably zero while it is
just result of misupdate and another bug in force_edge_cold that does not know
how to give up on entry block.  I am testing fix.